were thought to be impaired. The clinic, originally called the Youth Behavior Program, was subsequently renamed the Attachment Center at Evergreen. In 1983, ethologist Nikolas Tinbergen published a book recommending the use of holding therapy by parents as a treatment or "cure" for autistic children. Tinbergen based his ideas on his methods of observational study of birds. Parents were advised to hold their autistic children despite resistance and to endeavor to maintain eye contact and share emotions. Tinbergen believed that autism related to a failure in the bond between mother and child caused by "traumatic influences" and that enforced holding and eye contact could establish such a relationship and rescue the child from autism. Tinbergen's interpretations of autism were without scientific rigor and were contrary to the then growing acceptance that autism had a genetic cause. Despite the lack of a sound theoretical or scientific base, holding therapy as a treatment for autism is still practiced in some parts of the world, notably Europe. Speltz cites child psychiatrist Martha Welch and her 1988 book, Holding Time, as the next significant development. Like Zaslow and Tinbergen, Welch recommended holding therapy as a treatment for autism. Like Tinbergen, Welch believed autism was caused by the failure of the attachment relationship between mother and child. Mothers were instructed to hold their defiant child, provoking anger and rage, until such time as the child ceased to resist, at which point a bonding process was believed to begin. Foster Cline and associates at the Attachment Center at Evergreen, Colorado began to promote the use of the same or similar holding techniques with adopted, maltreated children who were said to have an "attachment disorder". This was replicated elsewhere such as at "The Center" in the Pacific Northwest. A number of other clinics arose in Evergreen, Colorado, set up by those involved in or trained at the Attachment Center at Evergreen (renamed the Institute for Attachment and Development in about 2002). These included one set up by Connell Watkins, formerly an associate of Foster Cline at the Attachment Center and its clinical director. Watkins was one of the therapists convicted in the Candace Newmaker case in 2001 in which a child was asphyxiated during a rebirthing process in the course of a two-week attachment therapy "intensive". Foster Cline gave up his license and moved to another state following an investigation of a separate attachment therapy related incident.